Peraurated nickel carbide carbonyl clusters: the cationic [Ni6(C)(CO)8(AuPPh3)8]2+ monocarbide and the [Ni12(C)(C2)(CO)17(AuPPh3)3]− anion containing one carbide and one acetylide unit

Two new peraurated Ni-carbide carbonyl clusters have been prepared and structurally characterized, i.e. [Ni6(C)(CO)8(AuPPh 3)8]2+ and [Ni12(C)(C 2)(CO)17(AuPPh3)3]-. The latter is the first molecular cluster containing one carbide atom and one tightly bonded C2-unit. These display sub-van der Waals contacts suggesting the incipient formation of more extended C-C bonding. © the Partner Organisations 2014.Two new peraurated Ni-carbide carbonyl clusters have been prepared and structurally characterized, i.e. [Ni6(C)(CO)8(AuPPh3)8]2+ and [Ni12(C)(C2)(CO)17(AuPPh3)3]−. The latter is the first molecular cluster containing one carbide atom and one tightly bonded C2-unit. These display sub-van der Waals contacts suggesting the incipient formation of more extended C–C bonding